Samuel w



. (No Model.)

S. W. ALSTON.

GRATB.

No. 351,242. Y Patented Oct. 19, 1886.

N. Pains, Phumvuxhogmpm. washingwn. nc.

UNTTED STATES PATENT OFFICE.,

SAMUEL lV. ALSTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JAMESLANNING,'OF SAME PLACE.

GRATE.

SPECIFECATON forming part of Letters Patent No. 351,242, dated Qetober19, 1886.

Application filed September 2G, 1885.- Serial No. 178,285. (No model.)

To @ZZ whom, it may concern.:

Be it known that I, SAMUEL W. ALs'roN, a citizen or" the United States,residing in the city and county of Philadelphia, State o't'Penn-Sylvania, have invented a new and useful Improvement in Grates, whichimprovement is fully set forth in the following specification andaccompanying drawings, in which- Figure l represents a top or plan viewoi' a grate embodying my invention. Fig. 2 represents a bottom plan viewthereof. Fig. 3 represents a vertical section in line x a", Fig. 1. Fig.a represents a vertical section in line y y, Fig. 2.

Similar letters of reference indicate corresponding parts in the severaliigures.

My invention relates to improvements in grates; and it consists in theconstruction of the same with rocking bars mounted on a rotatable frame,as hereinafter fully set forth, whereby the said bars may be rockedsilnultaneously with the rotary movement of the frame.

It further consists in the combination of parts, arranged as hereindescribed, whereby t-he grate may be readily dumped or tilted whendesired.

Referring` to the drawings, -A represents a bed-plate7 from whose frontand rear depend hangers B, which are cast with or secured to said platein any suitable manner.

C represents a bar, which. is formed with journals G, the latterrest-ing on the hangers B.

D represents the frame ol' the grate, from which depends a pivot, D, thelatter being itted in an opening in the bar C, whereby the frame may beturned horizontally or laterally on said bar, and as the bar isrotatingly mounted on the hangers B, itpermits the overturning of thegrate, as will be hereinafter more fully described. The frame D is ofthe form of an open rim with a bar, D2, at the bottom, the pivot D beingconnected with said bar. At the top ofthe trame are the grate-bars E,which are formed with journals E', which are mounted on said frame, itbeing seen that the bars are rotatable on the frame. Depending from thegrate-bars are arms FF, which are connected at the bottom by an arm, G,which is pivoted to the arms F F, the arm F passing through a slot, II,in the bar D2 of the frame D and a slot, J, in the rotary bar C.

To the front of the frame D is secured a rod, K, which passes through aguide, L, on the bed-plate, and has its outer end squared for attachmentof a key or other suitable tool, by which the grate is raked.

To the side of the bed-plate is pivoted a le ver, M, whose inner end ornose projects under the frame D and prevents overturning of the grate.

Vhen it is desired to rake the lire, the frame D is rotated laterally bythe key on the rod K, and as the arm F of the central grate-bar Estrikes the wall of the slot J of the bar G said arm F is deiiectedlaterally, thus imparting rocking motions to the connected gratebar. Asthe arms F of the other grate-bars are connected with the arm F by meansof the arm G, rocking motions are also imparted to the remaininggrate-bars, so that whilethe grate is rotated in horizontal directionseach grate-bar is rotated or rocked, and so the tire is quickly andeffectively raked.

By moving the lever M from the frame D and properly operating the rod K,the grate may be rotated with the journaled bar C, and thus overturned,so as to let down the tire or ashes into the ash-pit.

The side ot the frame opposite to the lever M is provided with a bracketor hooked lug, M', for preventing lowering of the grate at said side. p

Having thus described my invention, what I claim as new, and desire tosecure by Let-ters Patent, is-

l. In combination with a central supportingbar, a frame pivotallymounted thereon, and having a lateral extension forming a handle,oseillat-ing bars mounted on said frame and provided with arms, andlinks connecting said arms, one or more ofthe arms of the oscillatingbars engaging the supporting-bar, whereby the said bars may be operatedby the lateral movement of the frame, substantially as described.

2. A frame having grate-bars rotatingly mounted thereon, arms attachedto said bars, a connecting-piece pivoted to said arms, a bed` plate, anda deflecting-piece mounted on said ICO bed-plate, engaging one of saidarms, substanpivot andsustained on said bed-plate, and devicesconnecting said rocking bars, consisting of arms .attached to saidrocking bars and links connected to said arms, one cfr, said arms beingin engagement with the said pivot-bearing bar,

substantially as and for the purpose set forth.

4. A grate having a rotary raking-frame, gratebars rotatingly mounted onsaid frame, a slotted bar to which the frame is pivoted, a bed-platesustaining said slotted bar, and arms connected with the grate-bars andWith cach other, one of said arms passing throughsaid slotted bar andbeing deflected thereby, causing the rocking of the gratevbars when theframe is rotated or moved, substantially as described.

5. Arotatable frame carrying rocking bars andformed With a bottom bar,D2, which is provided with a pivot,D and a slot,H,thc bar C, receivingsaid pivot and having a slot, J the bed-plate A, with hangers B,supporting said bar C, arms F F, attached to the grate-bars andconnected by a pivotal arm, G, one of said arms F F passing through theslot- J as a lateral deiiector, substantially as stated.

' 6. A rotatable frame having rocking gratebars with depending armsconnected together,

a slotted bar mounted on the bed-plate and pivotally supporting saidframe, one of the depending bars or arms passing through said slot, abed-plate with guide, and a catch, all substantially as and for thepurpose set forth.

7. The bed-plate A, with hangers B and guide L, in combination with barC, having slot J, the frame D, With pivot D', having bear ing in bar C,the bars E, journaled in the frame D, the arms F F', connected by thearms G, said arm F passing through the slot J of the bar C, and the rodK, attached to the frame'v D, all substantially as and for the purposeset forth.

SAMUEL vv. ALsToN.

Witnesses:

JOHN A. WIEDERsHEIM, A. P. GRANT.

